Question 1

An example of a series-connected device is a circuit breaker.

Accepted Answer

A) True 
 B)False  True

Question 2

Current remains the same at any point in the series circuit.

Accepted Answer

A) True 
 B)False  True

Question 3

____ are used to provide different voltages across certain points.

Accepted Answer

A)  Voltage droppers 
B)  Voltage grounders 
C)  Voltmeters 
D)  Voltage dividers 
A)  Voltage droppers 
B)  Voltage grounders 
C)  Voltmeters 
D)  Voltage dividers D

Question 4

A(n) ____ ground is a point that is used as a common connection for other parts of a circuit but is not actually driven into the ground.

Accepted Answer

A)  earth 
B)  polarity 
C)  divider 
D)  chassis 
A)  earth 
B)  polarity 
C)  divider 
D)  chassis

Question 5

In a circuit with an applied voltage of 120 V and a total resistance of 60 ohms, how much current flows through each resistor?

Accepted Answer

A)  1 A 
B)  2 A 
C)  3 A 
D)  4 A 
A)  1 A 
B)  2 A 
C)  3 A 
D)  4 A

Question 6

If the current becomes excessive, the fuse or circuit breaker will ____.

Accepted Answer

A)  close 
B)  reinforce the connection 
C)  disconnect the rest of the circuit 
D)  make a connection to ground 
A)  close 
B)  reinforce the connection 
C)  disconnect the rest of the circuit 
D)  make a connection to ground

Question 7

What is Ohm's Law?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 8

The total amount of series resistance offered to the flow of current is ____ to the sum of all the resistors in the circuit.

Accepted Answer

A)  the same as 
B)  not related to 
C)  proportional 
D)  inversely proportional 
A)  the same as 
B)  not related to 
C)  proportional 
D)  inversely proportional

Question 9

Voltage polarity can be determined by observing the ____ of current flow through the circuit.

Accepted Answer

A)  resistance 
B)  direction 
C)  magnitude 
D)  reluctance 
A)  resistance 
B)  direction 
C)  magnitude 
D)  reluctance

Question 10

The total power used in a circuit ____ the power used by all parts.

Accepted Answer

A)  is equal to the product of 
B)  is equal to the average of 
C)  has no relation to 
D)  is equal to the sum of 
A)  is equal to the product of 
B)  is equal to the average of 
C)  has no relation to 
D)  is equal to the sum of

Question 11

A series circuit has 2 100-ohm resistors and 2 200-ohm resistors. What is the total resistance?

Accepted Answer

A)  100 ohms 
B)  200 ohms 
C)  300 ohms 
D)  600 ohms 
A)  100 ohms 
B)  200 ohms 
C)  300 ohms 
D)  600 ohms

Question 12

The amount of current flow in the circuit can be found by using ____ Law.

Accepted Answer

A)  Lenz's 
B)  Fleming's 
C)  Ohm's 
D)  Seebeck's 
A)  Lenz's 
B)  Fleming's 
C)  Ohm's 
D)  Seebeck's

Question 13

In a series circuit, the ____ of all the voltage drops across all resistors must equal the ____.

Accepted Answer

A)  sum; voltage applied to the circuit 
B)  product; voltage applied to the circuit 
C)  sum; current 
D)  product; current 
A)  sum; voltage applied to the circuit 
B)  product; voltage applied to the circuit 
C)  sum; current 
D)  product; current

Question 14

If the voltage drop across a resistor is 20 V and the current is 0.02 A, what is the power dissipated in watts?

Accepted Answer

A)  0.02 
B)  0.4 
C)  4 
D)  20 
A)  0.02 
B)  0.4 
C)  4 
D)  20

Question 15

In voltage divider circuits, ground is often used to provide a common reference point.

Accepted Answer

A) True 
 B)False

Question 16

____ is the force that pushes the electrons through a resistance.

Accepted Answer

A)  Permeability 
B)  Reluctance 
C)  Current 
D)  Voltage 
A)  Permeability 
B)  Reluctance 
C)  Current 
D)  Voltage

Question 17

The symbols for earth ground and chassis ground are the same.

Accepted Answer

A) True 
 B)False

Question 18

If the voltage drop across a resistor is 12.5 V and the resistance is 250 ohms, what is the power dissipated in watts?

Accepted Answer

A)  0.125 
B)  0.375 
C)  0.500 
D)  0.625 
A)  0.125 
B)  0.375 
C)  0.500 
D)  0.625

Question 19

A series circuit has ____ path(s) for current flow.

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
A)  one 
B)  two 
C)  three 
D)  four

Question 20

Voltage dividers can be constructed to produce any voltage desired.

Accepted Answer

A) True 
 B)False

Exam 5: Series Circuits

An example of a series-connected device is a circuit breaker.

Current remains the same at any point in the series circuit.

____ are used to provide different voltages across certain points.

A(n) ____ ground is a point that is used as a common connection for other parts of a circuit but is not actually driven into the ground.

In a circuit with an applied voltage of 120 V and a total resistance of 60 ohms, how much current flows through each resistor?

If the current becomes excessive, the fuse or circuit breaker will ____.

What is Ohm's Law?

The total amount of series resistance offered to the flow of current is ____ to the sum of all the resistors in the circuit.

Voltage polarity can be determined by observing the ____ of current flow through the circuit.

The total power used in a circuit ____ the power used by all parts.

A series circuit has 2 100-ohm resistors and 2 200-ohm resistors. What is the total resistance?

The amount of current flow in the circuit can be found by using ____ Law.

In a series circuit, the ____ of all the voltage drops across all resistors must equal the ____.

If the voltage drop across a resistor is 20 V and the current is 0.02 A, what is the power dissipated in watts?

In voltage divider circuits, ground is often used to provide a common reference point.

____ is the force that pushes the electrons through a resistance.

The symbols for earth ground and chassis ground are the same.

If the voltage drop across a resistor is 12.5 V and the resistance is 250 ohms, what is the power dissipated in watts?

A series circuit has ____ path(s) for current flow.

Voltage dividers can be constructed to produce any voltage desired.

Atomic Structure

Electrical Quantities, Ohms Law, and Resistors

Electrical Sources and Static Charges

Magnetism

Parallel Circuits

Combination Circuits

Measuring Instruments

Alternating Current

Alternating Current Loads

Capacitive Loads

Three-Phase Circuits

Transformers

Three-Phase Transformers

Electrical Services

General Wiring Practices Part 1: Receptacle and Switch Connections

General Wiring Practices Part 2: Protection Circuits, Dimmers, and Chimes

Three-Phase Motors

Single-Phase Motors

Schematics and Wiring Diagrams

Motor Installation

Filters

In a series circuit, the of all the voltage drops across all resistors must equal the .